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Format, validate, and minify JSON instantly in your browser — no upload, no signup.

Paste JSON and instantly view it as a readable table — export array data straight to CSV.

Encode text to Base64 or decode Base64 back to text — instantly, in your browser.

Generate cryptographically random UUID v4 values, one at a time or in bulk.

Percent-encode or decode a URL or query parameter value.

Compute SHA-1, SHA-256, SHA-384, and SHA-512 hashes of any text.

Decode a JSON Web Token's header and payload — no signature verification.

Convert Unix timestamps and date strings to ISO, UTC, local, and relative time.

Test a regular expression against a string with live highlighted matches.

Build a regular expression by clicking tokens and presets — no syntax memorization.

Diff two JSON documents and see every added, removed, and changed value.

Pretty-print or minify XML, with well-formedness checking.

Write GitHub-Flavored Markdown on the left, see the live rendered HTML on the right — fully in-browser.

Convert numbers between binary, octal, decimal, and hex — and see all four at once.

Escape & < > " ' for safe HTML, and decode entities back to text — instantly.

Convert a JSON array of objects to RFC 4180 CSV, and convert CSV back to JSON.

Pretty-print messy or minified SQL with proper clause indentation.

Convert CSV into a CREATE TABLE and INSERT statements for PostgreSQL, MySQL, SQLite, SQL Server, or ANSI SQL.

Convert a JSON array of objects into a CREATE TABLE and INSERT statements for PostgreSQL, MySQL, SQLite, SQL Server, or ANSI SQL.

Fill in the fields to build a valid connection string, or paste one to break it into its parts. Works for PostgreSQL, MySQL, MongoDB, Redis, SQL Server, and more.

Pretty-print minified or messy CSS with proper indentation.

Strip comments and whitespace from CSS to shrink file size.

Build a robots.txt file with allow/disallow rules and a sitemap URL.

Build a cron expression from simple fields, or describe an existing one in plain English.

Convert Unix file permission checkboxes to octal and symbolic notation, and back.

Pretty-print minified or messy HTML with proper tag indentation.

Strip comments and unnecessary whitespace from HTML to shrink file size.

Paste HTML and see a live, sandboxed preview of how it renders.

Explore XML as a collapsible tree instead of a flat block of text.

Generate and test live OpenGraph, Twitter, Discord, and WhatsApp social cards with meta tags.

Pretty-print and indent messy or minified PHP with consistent formatting.

Strip comments and collapse whitespace from PHP to shrink file size.

Convert between PHP serialize() format and JSON — both directions, instantly in your browser.

Convert Excel (.xlsx) to CSV and CSV back to Excel — both directions, instantly in your browser.

Escape raw text into a JSON string literal, or unescape one back to plain text.

Automatically fix broken JSON — trailing commas, single quotes, unquoted keys.

Convert JSON to XML and back, with automatic root-element wrapping.

Explore JSON as a collapsible, searchable tree instead of a flat text block.

Analyze a JSON document's size, depth, type breakdown, and duplicate keys.

Build and edit JSON visually — add keys, change types, rename fields — no raw syntax.

Shrink JPEG or WebP file size with a live quality preview, right in your browser.

Resize an image to an exact width and height, with optional aspect-ratio lock.

Convert an image between PNG, JPEG, and WebP, right in your browser.

Generate favicon.ico plus every PNG size browsers, iOS, and Android actually need.

Convert an image to a Base64 data URL with a copy button and a live size check — entirely in your browser.

Inspect an image's dimensions, aspect ratio, file type, file size, and data-URL size — entirely in your browser.

Select and crop a region of an image on a canvas with aspect-ratio presets, then export a full-resolution PNG.

Combine multiple PDFs into one document, in whatever order you choose.

Extract specific pages, or split every page into its own PDF.

Rotate every page of a PDF 90°, 180°, or 270° and download the result.

Combine one or more images into a single PDF file.

Convert every page of a PDF into downloadable PNG or JPEG images.

Compare two PDF documents side by side and highlight text additions, deletions, and differences.

Shrink PDF file size with Ghostscript-powered compression — keep the quality you need.

Convert Word, Excel, and PowerPoint documents to PDF with LibreOffice — faithful layout, no software to install.

Convert Markdown to a clean, paginated PDF — renders Mermaid diagrams, tables, and code blocks entirely in your browser.

Add a text or image watermark to PDF pages — choose position, opacity, and which pages, all in your browser.

Draw or upload your signature and place it onto any page of a PDF — entirely in your browser.

Convert PDF to an editable Word (.docx) document. Server-side conversion preserves text and layout — free, no watermark.

Convert each PDF page into a PNG, JPEG, or GIF image. Download all pages as a zip — free, server-side, high quality.

Add automatic page numbers to every page of a PDF. Server-side, free, and keeps your original layout intact.

Strip malicious JavaScript and embedded files from a PDF to make it safe to share. Server-side security cleaning — free.

Add a password to a PDF so only people with the password can open it. Server-side 256-bit encryption — free and secure.

Remove the password from a protected PDF so it opens freely. Enter the current password and get an unlocked copy — free, server-side.

Reorder the pages of a PDF into any sequence. Enter the new page order (e.g. 3,1,2,4) and download the rearranged PDF — free.

Count words, characters, sentences, and paragraphs — with live reading time estimates.

Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case, and more — all at once.

Turn any title or text into a clean, URL-safe slug.

Generate placeholder Lorem Ipsum text — by words, sentences, or paragraphs.

Strip duplicate lines from multiline text with optional case-insensitive, trim, and sort controls.

Share a block of text or code with a short link — no sign-up.

Find and replace text instantly, with optional regex support.

Analyze keyword frequency and density percentage in any block of text.

Extract unique keywords and key phrases from any text, with stopword filtering.

Generate SEO-optimized meta tags including Open Graph and Twitter Card markup.

Remove emojis, duplicate lines, whitespace, markdown, HTML tags, and zero-width characters in one click.

Generate a scannable Code 39 barcode from text, right in your browser.

Create a clean, itemized invoice PDF with automatic tax and total calculation.

Get AI-suggested, brandable domain name ideas from a keyword.

Check real domain availability via RDAP, and batch-check brand-name variations across TLDs.

Calculate X% of Y, what percent X is of Y, or percentage change — instantly.

Calculate your Body Mass Index in metric or imperial units, with category.

Calculate exact age in years, months, and days between any two dates.

See how much downtime an uptime percentage (like 99.9%) actually allows per day, month, and year.

Look up and analyze a domain's SPF record for common misconfigurations.

Look up and analyze a domain's DMARC policy and reporting configuration.

Look up and analyze a domain's DKIM key record by selector.

Check how strong a password is, entirely in your browser — nothing is sent anywhere.

Generate time-based one-time passcodes (2FA codes) from a base32 secret, entirely in your browser.

Compute a file's SHA checksum and verify it against a published hash, entirely in your browser.

Turn any text or URL into a downloadable QR code — customizable colors and error correction.

Generate strong, random passwords with a cryptographically secure generator and a live strength meter.

Pick a color or convert between HEX, RGB, and HSL instantly.

Convert length, weight, and temperature values between common metric and imperial units.

Test your speakers or headphones with tones, a bass sweep, a left/right stereo check, and a distortion test.

Generate a continuous tone at a precise frequency with waveform and volume control.

Test your left and right audio channels independently to check speaker or headphone balance.

Fill your screen with solid colors to quickly spot dead or stuck pixels.

Test your display's color accuracy and uniformity with solid color and gradient panels.

Instantly view your screen resolution, DPI, color depth, and display information.

Strip tracking parameters, UTM codes, and unwanted query tokens from web links.

Test every key on your keyboard with a live interactive visual layout.

Turn your screen into a fullscreen scrolling banner — big text, marquee, and neon effects for concerts, events, and signage.

Look up A, AAAA, MX, NS, CNAME, and TXT records for any domain over DNS-over-HTTPS.

Compute network address, broadcast, mask, wildcard, host range, and counts for any IPv4 CIDR block.

Paste a URL and get an AI-generated reading guide — a plain-language overview, what the page covers, and the key takeaways.

Get a concise AI summary of any web page — a quick paragraph plus the key bullet points.

Convert any web page into clean, readable Markdown in one click.

Extract a clean JSON document from any web page — its metadata, headings, and content stats.

Save any web page as a printable PDF — pick the page size and orientation.

Capture a screenshot of any website as PNG, JPEG, or WebP — at desktop, tablet, or mobile size, full-page or above the fold.

Extract a website's SEO and social metadata — title, description, Open Graph, and Twitter tags.